package com.mm.mmcalendar.common.utils;

import android.app.Activity;
import android.app.ActivityManager;
import android.content.Context;

import java.util.Stack;

/**
 * 应用程序Activity管理类：用于Activity管理和应用程序退出
 */
public class AppManager {
	private static Stack<Activity> activityStack = new Stack<Activity>();

	/**
	 * 添加Activity到堆栈
	 */
	public static void addActivity(Activity activity) {
		activityStack.push(activity);
	}

	/**
	 * 获取当前Activity（堆栈中最后一个压入的）
	 */
	public static Activity currentActivity() {
		return activityStack.lastElement();
	}

	/**
	 * 结束当前Activity（堆栈中最后一个压入的）
	 */
	public static void finishCurrentActivity() {
		Activity activity = activityStack.pop();
		activity.finish();
	}

	/**
	 * 结束指定的Activity
	 */
	public static void finishActivity(Activity activity) {
		if (activity != null) {
			activityStack.remove(activity);
			if (!activity.isFinishing()) {
				activity.finish();
			}
		}
	}

	/**
	 * 结束指定类名的Activity
	 */
	public static void finishActivity(Class<?> cls) {
		for (Activity activity : activityStack) {
			if (activity.getClass().equals(cls)) {
				finishActivity(activity);
			}
		}
	}

	/**
	 * 结束所有Activity
	 */
	public static void finishAllActivity() {
		for (Activity activity : activityStack) {
			if (activity != null) {
				activity.finish();
			}
		}
		activityStack.clear();
	}

	/**
	 * 退出应用程序
	 */
	public static void AppExit(Context context) {
		try {
			finishAllActivity();
			ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
			manager.killBackgroundProcesses(context.getPackageName());
			System.exit(0);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}